Jade pendant can choose single-sided diamond, double-sided diamond or ultrasonic diamond according to the situation. Single-sided punching, the more expensive jade pendants are all hand-selected, and then punched on one side. Generally speaking, different jadeite pendants have different punching methods with different qualities and requirements.

Find a beverage bottle, drill a small hole in the outer edge of the bottom of the bottle with a needle or drill, and then fill the beverage bottle with water; When the beverage bottle filled with water is suspended, a small water column will flow out of the small hole, and the cooling device will be completed.

Use sewing needles. Tie the rope to be strung on the jade pendant to the sewing needle, then let the sewing needle pass through the hole with the rope and untie the sewing needle. Make the hole bigger.

If there is no hole, you can consider gold plating, making a base inlay, or weaving a knot to wrap the edge. Of course, you can call again. Generally, non-porous jade ornaments are usually smaller and thinner, and it is better to choose gold-plated ones.